stmpe1600 STMicroelectronics, stmpe1600 Datasheet - Page 6

• Manufacturer Part Number: stmpe1600
• Description: 16-bit Port Expander With Ultra-low Power Consumption Xpander Logictm
• Manufacturer: STMicroelectronics

I
6/26
2
C block
Table 3.
For the bus master to communicate to the slave device, the bus master must initiate a Start
condition and followed by the slave device address. Accompanying the slave device
address, there is a Read/Write bit (R/W). The bit is set to 1 for Read and 0 for write
operation.
If a match occurs on the slave device address, the corresponding device gives an
acknowledge on the SDA during the 9th bit time. If there is no match, it deselects itself from
the bus by not responding to the transaction.
Figure 4.
SDA
SCL
A2
0
0
0
0
1
1
1
1
Eight programmable slave addresses
I
tBUF
2
C timing
P
S
Doc ID 16938 Rev 1
tHD:STA
A1
tR
0
0
1
1
0
0
1
1
tLOW
tHIGH
tF
tHD:DAT
tSU:DAT
A0
0
1
0
1
1
1
0
1
SR
tSU:STA
Slave device address
tHD:STA
(7-bit or 10-bit
addressing)
42h
43h
44h
45h
46h
47h
48h
49h
STMPE1600
P
AI00589
tSU:STO